CN104633491B - T5 lamp tube with LED light source - Google Patents
T5 lamp tube with LED light source Download PDFInfo
- Publication number
- CN104633491B CN104633491B CN201310572492.7A CN201310572492A CN104633491B CN 104633491 B CN104633491 B CN 104633491B CN 201310572492 A CN201310572492 A CN 201310572492A CN 104633491 B CN104633491 B CN 104633491B
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- Prior art keywords
- lampshade
- light
- control unit
- unit
- pcb plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention relates to a T5 lamp tube with an LED light source. The T5 lamp tube comprises a lamp cap, an aluminum profile of the T5 lamp tube specification, a PCB, a lampshade, LED lamp beads assembled on the PCB, and a power module. A sinking type installing plane is formed at the bottom of the aluminum profile. The PCB is fixed to the sinking type installing plane. The section of the lampshade is of an arc structure. The outer surface of the lampshade is smooth, fine stripes densely arrayed are formed on the inner surface of the lampshade, and the sections of the fine stripes are of arc downward-concave structures to form a concave lens light diffusion surface. A light reflecting board is arranged on the surface of the PCB and arranged on the peripheries of the LED lamp beads in a sleeving mode, the bottom of the light reflecting board abuts against the PCB, and the section of the light reflecting board is of a paraboloid structure. The lamp tube has the advantages that the light-emitting angle is diffused, the illumination angle is large, uniformity is good, glaring is avoided, and the lamp tube can be directly connected into an electric supply and can be used in cooperation with a T5 lamp rack with an electronic ballast.
Description
Technical field:
The invention belongs to lighting field, particularly to a kind of t5 fluorescent tube of LED light source, it has no hot spot, and light efficiency is high, goes out
Optical uniformity is good, the big feature of lighting angle.
Background technology:
Because LED lamp pipe is than straight tube fluorescent streetlamp energy-saving 50%, with the development of led technology, energy-conservation ratio also will continue to carry
Height, there is short life in fluorescent tube, containing reasons such as mercury pollution, straight tube fluorescent lamp is just progressively replaced by LED lamp pipe.Profile is at present
25.4 millimeters of t8(diameter), 31.8 millimeters of t10(diameter) LED lamp pipe, its aluminium section bar cooling stand has enough spaces to load
Drive module, therefore alternative existing t8, t10 fluorescent tube.But the t5(of current occuping market leading position is a diameter of
15.875 millimeters) fluorescent tube, its space is little, to be substituted for LED lamp pipe, then cannot load efficient complicated circuit, drive circuit
Can only be external, as the electron rectifier of fluorescent lamp, or the lamp bracket of an in addition built-in drive module, LED lamp pipe replaces
Change and need during fluorescent tube to change support or remove original drive circuit, and new driving is installed, operation is complicated, costly, and
Rig up error easily causes potential safety hazard, using having inconvenience more.
T5 lamp bracket in factory floor, particularly cleaning shop, because standard requires, lamp bracket also must reach purification and require,
Generally lamp bracket is big and complicated.To change LED lamp pipe, then must dismantle lamp bracket, change driving power supply, then install, or change
Whole lamp bracket, replaces inconvenience, high cost and easily cause potential safety hazard.
If changing the LED lamp pipe after lamp bracket interior power to break down, needing repairing or updating, then can only change same public affairs
Department, the product of same model could be mated with built-in power supply.The update of technology is not in fact it could happen that have the product of same model
Product supply, then must change power module again, or a whole set of replacing.Operation complexity high cost is it is impossible to general.
Electron rectifier daylight lamp, electronic rectifier output driving fluorescent tube be high-frequency and high-voltage alternating current power supply, its work
Form self-excitation half-bridge by two semiconductor power devices or the high pressure of its sharp half-bridge generation comes what excitation fluorescent lamp pipe lighted, swash
After sending out, electron rectifier output is high-frequency ac constant current source, and fluorescent tube is then an impedance device.
Application No.: 201110212985.0 patent although having accomplished drive circuit to load in the fluorescent tube of t5, but not
Can directly replace in addition it is also necessary to remove original electron rectifier.The circuit of this patent there is also each led lamp beads light asynchronous,
The uneven problem of lighting tube brightness.
Application No.: 201110285980.0 patent although achieving electron rectifier or the general circuit of civil power, but
Circuit is complicated, and device is many, external can only drive or be assemblied in the fluorescent tube of t8 or t10 it is impossible to load t5 fluorescent tube.
In addition, how improving the power-efficient of led t5 fluorescent tube, reliability and interchangeability, eliminating dazzle, improving illumination
The problems such as uniformity, be also the problem that LED light source is treated to solve.
Content of the invention:
The purpose of the present invention is a kind of invention recessed stria of lampshade inner surface molding, forms light angle spread effect,
And coordinate the structure that reflector and led sunk type are installed, improve the t5 fluorescent tube of the LED light source of illumination uniformity.
The technical scheme is that be achieved in that: a kind of t5 fluorescent tube of LED light source, including lamp holder, t5 fluorescent tube specification
Aluminium section bar, pcb plate, lampshade, the led lamp beads being assemblied on pcb plate and be arranged on the power module in lamp holder；Described aluminium section bar cuts
Face becomes class semi arch moulding, and pcb plate is fixed on aluminium section bar, and lamp holder is arranged on aluminium section bar two ends, and electrically connects with pcb plate；Its
Feature is that aluminium section bar bottom forms a sunk type mounting plane, and two edge symmetrical molding have notch buckling groove outwardly and notch
Locating slot inwardly, outer surface forms radiating groove；Described pcb plate is fixed on described mounting plane, and between
Impose heat conductive silica gel；Described lampshade section camber structure, two edge symmetrical molding have inside button foot, by the installing of this button foot
In the buckling groove at described aluminium section bar edge, form the assembling positioning of lampshade；Lampshade smooth outer surface, inner surface form intensive
The stria of arrangement, stria section is circular arc concave configuration, forms concavees lens light diffusion minute surface；Described stria crown height
Less than 0.3mm, radius is less than 0.6mm；Described pcb plate surface is provided with a reflector, offers at the corresponding led lamp beads of this reflector
Eyelet, reflector is set in led lamp beads periphery, in the locating slot that bottom is conflicted on pcb plate, two long checkposts are located at aluminium section bar,
Reflector section becomes paraboloid structure.
The arc surface of the stria of described lampshade inner surface forms for bicircular arcs, with lampshade median plane as boundary, every slice
The circular arc of stricture of vagina is constant towards the arc radius of median plane side, and the arc radius away from median plane side successively decrease one by one.
Described lampshade towards median plane side arc radius be 0.4-0.6mm, away from median plane side arc radius by
Bar successively decreases, and its decrement is 0.01-0.02mm.
Described lampshade section camber structure refers to be that central area radius is big, tapers into toward two side areas radius, becomes class
Semi arch or class semiellipse arc structure.
Described power module is divided into two parts, is respectively embedded in the lamp holder of two ends, and electrically connects with the pcb plate of lamp bead.
Described power module, its plant-grid connection point two-way after power supply detector unit, rectification unit, a road is through high frequency control
LED lamp group is driven, another road drives LED lamp group successively after power frequency city electric control unit, constant-current switch power source unit after unit；
Described power supply detector unit is the transformator t1 of three windings, and secondary first winding exports to high frequency from lock unit, high frequency self-locking
Unit output suppression power frequency city electric control unit working condition, this power frequency city electric control unit conducting state is by constant-current switch power source
The feedback signal of unit output maintains；Described power supply detector unit secondary the second winding exports to high frequency control unit, controls high
Frequency control unit is turned on or off.
Described rectification unit is the rectifier bridge of four high-frequency diode d1-d4 compositions；Described high frequency control unit is two poles
Pipe d5, resistance r1, electric capacity c1 and stabilivolt z1 composition integrating circuit, control conducting and the cut-off of controllable silicon q1；Described high frequency is certainly
Lock unit is made up of resistance r2, diode d6 and voltage stabilizing benchmark audion q3, and when detector unit is output as high level, high frequency controls
During unit conducting, r2 end input high level, then voltage stabilizing prover pipe q3 conducting is it is suppressed that the control end of power frequency city electric control unit is electric
Pressure, is less than the unlatching threshold value of z2, and locking power frequency city electric control unit is off；Described power frequency city electric control list
Unit, is made up of controllable silicon q2, stabilivolt z2, diode d7, resistance r3, r4, r5 and electric capacity c2；Described switching power supply is served as reasons
Resistance r6-r14, electric capacity c4-c6, the auto-excitation type former limit of current constant control ic u1, mos pipe q4, diode d9 and transformator t2 composition
The constant current source of feedback, provides constant current source to LED lamp group after output is filtered.
The invention has the following beneficial effects: the 1, feature that lighted according to led, lighting angle and light intensity are in lambertian distribution,
Luminous intensity i0 that i.e. luminous intensity i θ in one direction is equal in this light source luminescent face vertical direction is multiplied by deflection
Cosine, i θ=i0cos θ, light intensity is in that angle cos is distributed, the opening angle of aluminium section bar be 90 degree so that the light that sends from lamp bead to
The light intensity at lampshade edge also can reach 70%, cos45=0.707 of central light strength, and the power of light visually can not be identified,
Reach the effect of uniform in light emission；2nd, the lampshade inner surface of the present invention is the circular arc composition of different curvature, lampshade outer surface any
The light that sends of point, is all the light that multiple angles are combined, and lighting angle is discrete, and the light so sending from outer surface is just more uniform,
Eliminate LED light source glaring failure；3rd, the setting of reflector, the light that reflection is come reflexes to lampshade again, and arrives in multi-angle
Reach lampshade, after the circular arc through different radians reflects, more discrete angle is overflowed from cover surface；In addition, being reflected by reflector
The light returned, also has the circular arc through both sides stria for the part to reflect to bigger angle, increased overall lighting angle, also can
Improve glare effect and improve light intensity；4th, LED light source adopts sunk type to design, and increases the distance of light source and stria circular arc, carries
Range of exposures on lampshade for the bloom, allows light evenly；5th, it is aided with compatible type power module so that finished product fluorescent tube can directly connect
Civil power, also can be suitably used on the t5 lamp bracket of tube with electronic ballast.
Brief description:
With reference to concrete legend, the present invention will be further described:
The t5 fluorescent tube generalized section of Fig. 1 LED light source
Fig. 2 t5 fluorescent tube schematic cross-section
Fig. 3 aluminum profile cross section schematic diagram
Fig. 4 lampshade schematic cross-section
Fig. 5 Fig. 4 x partial enlarged drawing
Fig. 6 power module theory diagram
Fig. 7 power module circuitry figure
Fig. 8 lampshade optical path analysis figure
Fig. 9 Fig. 8 a point index path
Figure 10 Fig. 8 b point index path
Figure 11 Fig. 8 c point index path
Wherein
1 lamp holder, 2 aluminium section bar, 21 mounting plane 22 buckling groove
23 locating slot, 24 radiating groove, 3 pcb plate 4 lampshade
41 button foot 42 stria, 5 reflector 6 led lamp beads
The remote circular arc of the nearly circular arc r` of 7 power module y median plane r
Specific embodiment:
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the t5 fluorescent tube of LED light source, including lamp holder 1, the aluminium section bar 2 of t5 fluorescent tube specification,
Pcb plate 3, lampshade 4, reflector 5, the led lamp beads 6 being assemblied on pcb plate and the power module 7 being arranged in lamp holder.
As Fig. 3, the one-tenth class semi arch moulding of described aluminium section bar 2 section, bottom forms a sunk type mounting plane 21, both sides
There is notch buckling groove 22 and notch outwardly locating slot 23 inwardly along symmetrical molding, outer surface forms radiating groove 24.
As Fig. 4 and Fig. 5, described lampshade 4 section camber structure, this arcuate structure refers to be that central area radius is big, toward two
Side region radius tapers into, and becomes class semi arch or class semiellipse arc structure, is certainly also not excluded for semi arch or semiellipse arc knot
Structure；4 liang of edge symmetrical molding of lampshade have inside buckle foot 41, lampshade 4 smooth outer surface, inner surface form the thin of dense arrangement
Striped 42, stria 42 section is circular arc concave configuration, forms concavees lens light diffusion minute surface；Described stria 42 crown height is little
In 0.3mm, radius is less than 0.6mm；More specifically, the arc surface of the stria 42 of lampshade 4 inner surface forms for bicircular arcs, with
Lampshade median plane y is boundary, and the circular arc of every stria 42 is constant towards the arc radius of median plane y side, away from median plane y side
Arc radius successively decrease one by one, its parameter be lampshade 4 towards median plane side arc radius be 0.4-0.6mm, away from median plane
The arc radius of side successively decrease one by one, and its decrement is 0.01-0.02mm.As Fig. 5, the circular arc of low beam cover 4 median plane y side,
Referred to as nearly circular arc r, the circular arc of remote median plane y side, referred to as remote circular arc r`.
For another example Fig. 1 and Fig. 2, described pcb plate 3 is fixed on the mounting plane 21 of aluminium section bar 2, and between imposes and lead
Hot silica gel, so that the very big limit of the heating of light source is conducted to aluminium section bar 2, and by the radiating groove 24 of outer surface to external diffusion；?
The surface of pcb plate 3 is provided with a reflector 5, and corresponding led lamp beads 6 position of this reflector 5 opens up perforation, and reflector 5 is set in
Led lamp beads 6 periphery, in the locating slot 23 that bottom is conflicted on pcb plate 3, two long checkposts are located at aluminium section bar 2, forms tensioned state,
Make reflector 5 section become paraboloid structure, effectively light is reflexed to lampshade 4 side；Lampshade 4 is installed in by buckleing foot 41
In the buckling groove 22 at described aluminium section bar 2 edge, form the assembling positioning of lampshade 4.Lamp holder 1 is arranged on aluminium section bar 2 two ends, lamp holder 1
On electrode electrically connect with pcb plate 3；The power module 7 of the present invention adopts separate structure, namely is divided into two parts, embedding respectively
Enter in two ends lamp holder 1, and electrically connect with pcb plate 3, be not take up lamp luminescence part.
With reference to Fig. 6 and Fig. 7, power module 7, its plant-grid connection point two-way, road after power supply detector unit, rectification unit
Drive LED lamp group after high frequency control unit, another road is successively through power frequency city electric control unit, constant-current switch power source unit rear-guard
Dynamic LED lamp group；Described power supply detector unit is the transformator t1 of three windings, and secondary first winding exports to high frequency self-locking list
Unit, high frequency exports suppression power frequency city electric control unit working condition from lock unit, this power frequency city electric control unit conducting state by
The feedback signal of constant-current switch power source unit output maintains；Described power supply detector unit secondary the second winding exports to high frequency control
Unit, controls high frequency control unit to be turned on or off.
Described rectification unit is the rectifier bridge of four high-frequency diode d1-d4 compositions；Described high frequency control unit is two poles
Pipe d5, resistance r1, electric capacity c1 and stabilivolt z1 composition integrating circuit, control conducting and the cut-off of controllable silicon q1；Described high frequency is certainly
Lock unit is made up of resistance r2, diode d6 and voltage stabilizing benchmark audion q3, and when detector unit is output as high level, high frequency controls
During unit conducting, r2 end input high level, then voltage stabilizing prover pipe q3 conducting is it is suppressed that the control end of power frequency city electric control unit is electric
Pressure, is less than the unlatching threshold value of z2, and locking power frequency city electric control unit is off；Described power frequency city electric control list
Unit, is made up of controllable silicon q2, stabilivolt z2, diode d7, resistance r3, r4, r5 and electric capacity c2；Described switching power supply is served as reasons
Resistance r6-r14, electric capacity c4-c6, the auto-excitation type former limit of current constant control ic u1, mos pipe q4, diode d9 and transformator t2 composition
The constant current source of feedback, provides constant current source to LED lamp group after output is filtered.
Optical path analysis
With reference to Fig. 8 to Figure 11, as shown in figure 8 above, lampshade outer surface is the song of smooth one to lampshade described in the invention
Face, inner side is the rough curved surface of intensive sunken arcs stria composition.Crown height is less than 0.3 millimeter, and circular arc is less than
0.6 millimeter, arc radius lean on and become to successively decrease one by one outside median plane y, more less toward both sides.
As the refraction of light path angle of the local of Fig. 9, the light sending from led, after inner surface, the circular arc of different curvature is rolled over
Penetrate into the light of different angles, curvature bigger (arc radius are less) refraction angle is bigger, it is bigger that the angle of this sidelight is changed,
Light so in left side just has more light to be refracted to the left.It can be seen that after light is reflected by inner surface, producing and hand over
Fork, the angle of the light sending from cover surface is more discrete, visually, light more homogeneous soft.
As the refraction of light path angle of the local of Figure 10, the light sending from led, after inner surface, the circular arc of different curvature
Reflect into the light of different angles, symmetrical spread out.Equally we are it also seen that after light reflected by adjacent stria arc surface
Produce and intersect.
As the refraction of light path angle of the local of Figure 11, the light sending from led, after inner surface, the circular arc of different curvature
Reflect into the light of different angles, curvature bigger (arc radius are less) refraction angle is bigger, the angle of this sidelight be changed more
Greatly, the light so on right side just has more light to be refracted to the right.Light is opened in angle spread.
Light can be diffused as bigger angle by the concavees lens being formed as the lampshade of Fig. 8 present invention, each stria,
Center is symmetrical concavees lens, extends both sides, and concavees lens angle design becomes to tilt toward side, can achieve that more light are sent out from side
Go out.Make to draw the lighting angle d of light, more than 180 degree.
Furthermore, when the light that led issues reaches lampshade inner surface, also have partly light to be reflected back, inner side is installed
The reflector (reflectance more than 90%) of high reflectance, light reflected by reflector after again transmission to lampshade, consequently, it is possible to one
Aspect has more light to go out lampshade to send, and on the other hand, from lampshade face, the angle of light out is more discrete, visual effect light
Evenly, soft, substantially improve glare problem.
Summarize:
1., according to lambertian, the present invention is 45 degree from light source to the subtended angle at lampshade edge, and cos45=0.707. reaches
The light of lampshade inner surface, edge also have 70% central light strength.Power visually can not be identified.It is believed that light reaches lampshade
Inner surface is uniform.
2., through the circular arc refraction of inner surface difference radian, the light sending from outer surface any point is all that multiple angles are multiple
The light closing, lighting angle is discrete.The light so sending from outer surface is just more uniform.Eliminate dazzle.
3. it is reflected back the light of lampshade from reflector, is also multiple angles, reach lampshade, the circular arc refraction through different radians
Afterwards, even more discrete angle is overflowed from cover surface.In addition, the light being reflected by reflector, also have partly translateral
Circular arc reflects to bigger angle, increased overall lighting angle.
4. the result of actual product detection is as our analyses.Whole lamp lights homogeneous soft, and lighting angle is more than 200
Degree, average beam angle is more than 120 degree.
Claims (5)
1. the t5 fluorescent tube of a kind of LED light source, including lamp holder, the aluminium section bar of t5 fluorescent tube specification, pcb plate, lampshade, is assemblied in pcb plate
On led lamp beads and the power module that is arranged in lamp holder；Described aluminum profile cross section becomes class semi arch moulding, and pcb plate is fixed on
On aluminium section bar, lamp holder is arranged on aluminium section bar two ends, and electrically connects with pcb plate；It is flat that aluminium section bar bottom forms a sunk type installation
Face, two edge symmetrical molding have notch buckling groove and notch outwardly locating slot inwardly, and outer surface forms radiating groove；Described
Pcb plate is fixed on described mounting plane, and between imposes heat conductive silica gel；Described lampshade section camber structure,
Two edge symmetrical molding have inside button foot, are installed in the buckling groove at described aluminium section bar edge by this button foot, form lampshade
Assembling positioning；Described pcb plate surface is provided with a reflector, opens up perforation, reflective sleeve-board at the corresponding led lamp beads of this reflector
It is located at led lamp beads periphery, in the locating slot that bottom is conflicted on pcb plate, two long checkposts are located at aluminium section bar, reflector section becomes to throw
Object plane structure；It is characterized in that lampshade smooth outer surface, inner surface form the stria of dense arrangement, stria section is circular arc
Concave configuration, forms concavees lens light diffusion minute surface；Described stria crown height is less than 0.3mm, and radius is less than 0.6mm；Described
The arc surface of the stria of lampshade inner surface is bicircular arcs composition, with lampshade median plane as boundary, the circular arc of every stria towards in
The arc radius of heart face side are constant, and the arc radius away from median plane side successively decrease one by one.
2. the t5 fluorescent tube of a kind of LED light source according to claim 1, is characterized in that lampshade towards the circular arc half of median plane side
Footpath is 0.4-0.6mm, and the arc radius away from median plane side successively decrease one by one, and its decrement is 0.01-0.02mm.
3. the t5 fluorescent tube of a kind of LED light source according to claim 1 and 2, is characterized in that lampshade section camber structure refers to
Be that central area radius is big, taper into toward two side areas radius, become class semi arch or class semiellipse arc structure.
4. the t5 fluorescent tube of a kind of LED light source according to claim 1, is characterized in that power module is divided into two parts, respectively
It is embedded in the lamp holder of two ends, and electrically connect with pcb plate.
5. a kind of t5 fluorescent tube of the LED light source according to claim 1 or 4, is characterized in that described power module, and its power supply connects
Enter point two-way after power supply detector unit, rectification unit, a road drives LED lamp group after high frequency control unit, and another road is successively
LED lamp group is driven after power frequency city electric control unit, constant-current switch power source unit；Described power supply detector unit is three windings
Transformator t1, secondary first winding exports to high frequency from lock unit, and high frequency exports suppression power frequency city electric control unit from lock unit
Working condition, the feedback signal that this power frequency city electric control unit conducting state is exported by constant-current switch power source unit maintains；Described
Power supply detector unit secondary the second winding exports to high frequency control unit, controls high frequency control unit to be turned on or off；Described confession
The electro-detection unit secondary tertiary winding exports to rectification unit, provides power frequency city electric control unit and high frequency control unit work electricity
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572492.7A CN104633491B (en) | 2013-11-13 | 2013-11-13 | T5 lamp tube with LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572492.7A CN104633491B (en) | 2013-11-13 | 2013-11-13 | T5 lamp tube with LED light source |
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| Publication Number | Publication Date |
|---|---|
| CN104633491A CN104633491A (en) | 2015-05-20 |
| CN104633491B true CN104633491B (en) | 2017-01-18 |
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| CN201310572492.7A Expired - Fee Related CN104633491B (en) | 2013-11-13 | 2013-11-13 | T5 lamp tube with LED light source |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11131431B2 (en) | 2014-09-28 | 2021-09-28 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US10208898B2 (en) | 2015-04-29 | 2019-02-19 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp with operating modes compatible with electrical ballasts |
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